Inspired by Extra Fudgy Coconut Oil Brownies from Pinch of Yum.
Preheat oven to 350°F. Melt the coconut oil and the chocolate over very low, gentle heat.
Whisk the chocolate mixture in a bowl with the brown sugar. Whisk in the eggs until the mixture thickens, about 30 seconds. Stir in the flour and salt until just combined. The mixture will be oily and heavy.